Strap for upholstery springs



Feb. 16, 1937.

s. E. S'CHWARTZMAN Filed June 20, 1955 I w 0/ w 5 g LET (Q/X. fl v A Mb. w u.

I N VEN TOR.

S m H M Wy M .N 5 F". w W Q MQ Patented Feb. 16, 1937 UNITED STATESPATENT OFFICE 2 Claims.

The invention relates to the assembling of upholstery springs such asare used in bed springs, furniture, automobile seats and the like andmore particularly to a strap for use with such springs.

It has for one of its main objects to provide a strap which may be usedfor effectively securing the spiral springs, commonly used in theupholstery art, so as to prevent them from tilting or shifting. Anotherobject is to provide a strap which will make it unnecessary to tie orknot the ends of the spiral springs, as it is now customarily done.

A still further object is to provide a strap of this type which may beused with upholstery spiral springs of various kinds and sizes and whichmay be assembled with such springs in various manners. Additionalobjects are to provide a strap of extremely simple construction whichcan be manufactured and assembled with the spiral springs at a verynominal cost.

These and various other objects and advantages Will be readilyunderstood from the following description and from the accompanyingdrawing of preferred embodiments of the invention,

in which, however, various modifications may be made without departingfrom the scope of the appended claims. In the drawing Fig. l is a planView showing several spiral springs assembled with straps made inaccordance with the invention,

Fig. 2 is a side view of one of the straps shown in Fig. 1,

Fig. 3 is another plan view showing the straps assembled to the spiralsprings in a somewhat difierent manner,

Fig. 4. is a plan view of a modified strap, and

Fig. 5 a side view of Fig. 4.

Referring now to Figs. 1 and 2, in which a plurality of spiral springsare shown at it], the

invention resides in the construction of the straps shown at H. Thesestraps are each made up of a metal strap in the center of which a slitI2 is sheared. The metal on opposite sides of the slit is preferablyoffset as shown in Fig. 2 so as to form a slot of sufficient width toenable it to be passed over the end convolution I3 of any of the spiralsprings l0. Circular openings I4 are preferably punched at each end ofthe slit [2, while holes l5 are punched in the outer ends of the straps.

As shown, the straps are placed across the end convolutions of thesprings by entering these through the slots in the straps. One of thestraps connected with each spring is also pushed through the slot in theother strap as plainly shown.

In Fig. 1, the ends of the straps are connected together, so that theholes l5 of two adjacent links align, and helical springs l6 are securedin these holes to connect together the adjacent rows of spiral springs.The helical springs shown at I! 5 may be connected directly to the framein which the whole assembly is contained. Similar springs are employedat the opposite end and at both sides of the assembly to connect it tothe frame when such is used. 10

In Fig. 3 the spacing of the spiral springs I0 is somewhat different,and in this case the individual straps are connected together by meansof spiral springs l8. It Will be noted, that when the straps are placedas illustrated in Figs. 1 and 3, the free 15 end IQ of the spiral springI!) is held in the hole l4 together with a part of the secondconvolution of the spring. This construction secures the end of the wireand eliminates the necessity of knoting the wire as is now commonlyresorted to. 20

In Figs. 4 and 5, two slots 29 and 2| are sheared in the strap and thepart 22 between these slots offset sufficiently to form a slot 23through which the wire of the spiral spring may be passed. Olfsets, suchas shown at 26 and 21, may also be 25 made transversely of the strap,adjacent to the openings [4, so that the convolution of the spring II]will rest in these offsets.

While the straps have been shown attached diagonally to the spiralsprings, it is evident that 30 they might as readily be assembled atright angles to the whole structure. In like manner, it is also evidentthat, instead of shearing a slit in the straps, a piece of the metalmight be cut away as to form a slot. 35

From the foregoing it will be seen that these straps are very simple inconstruction and that they are easy to attach. It will also be seen thatthey will effectively secure the spiral springs in their correctpositions and prevent them from 40 tilting, as is often the case in theordinary construction. It will also be noted that, by making the strapsin various lengths or by arranging them in various manners, they may beassembled with the spiral springs in many different 45 designs orcombinations.

Having described the invention and its objects what I claim is new andwish to protect by Letters Patent is:

1. A device of the class described comprising 50 a pair of intersectingstraps each having a slot intermediate of its ends and one strap passedthrough the slot in the other; the upper convolution of a spiral springpassed through the slots in both straps; the slots made of a length 55substantially equal to the diameter of the said slots in both straps;the slots made of a length convolution; and the straps locateds'ulestantialsubstantially equal to the diameter of the said 1y at rightangles to each other. convolution; the straps located substantially at2. A device of the class described comprising right angles to eachother; and means provided 6 a pair of intersecting straps each having aslot in each end of each strap for connecting them 5 intermediate of itsends and one strap passed with other adjacent straps.

through the slot in the other; the upper convolution of a spiral springpassed through the SAMUEL E. SCHWARTZMAN.

